Home / 8,587.38-12,879.05-2,345.91

Finding the Fourth Proportional to 8,587.38, 12,879.05 and 2,345.91

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Solution

The fourth proportional to 8,587.38, 12,879.05 and 2,345.91 is: 3,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.38 : 12,879.05 = 2,345.91 : x
  2. Step 2: Convert to fraction form
    8,587.38/12,879.05 = 2,345.91/x
  3. Step 3: Cross multiply
    8,587.38x = 12,879.05 × 2,345.91
  4. Step 4: Simplify right side
    8,587.38x = 30,213,092.19
  5. Step 5: Solve for x
    x = 30,213,092.19/8,587.38
  6. Step 6: Final answer
    x = 3,518.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.